A slang expression quite popular in Italian trap music meaning "I'm not joking" or "it's not fake". Is in no way a reference to JoJo's Bizarre Adventure.
La mia life è no jojo (No jojo)
Super JoJo is a remastered version of Cocomelon
JoJo fan: Who the fuck is Super JoJo
John: That is a remastered version of Cocomelon
JoJo fan: Oh
Super JoJo is a remastered version of Cocomelon
Jojo bows areeeeeee verrrrrryyyy niiiiiiccccceeee boooowwwwwwsss